Explain the physiological factors determining speed.
Physiological factors determining speed are – (with brief explanation of all)
i)Mobility of the nervous system /Reaction time
ii)Muscle composition
iii) Explosive strength
iv) Cardiovascular efficiency
v) Bio-chemical reserves and metabolic power.
What are the various types of friction ? How is friction advantageous or disadvantageous in the field of games and sports ? Explain with suitable examples.
What do you mean by correct posture? Explain the standing and sitting postures. What are the causes of bad posture?
Explain ‘weight training’ as one of the oldest methods for development of strength. Describe its advantages and disadvantages.
